Make Video Sequence Editor (VSE) playback in real time?
If you have a very powerful computer you might want to try using a different app. Blender vse is a very outdated tool that doesn't really use all of the potential of your hardware. No gpu acceleration, limited multithreading. The only solution for blender is working with proxies at a lower res. If premiere works fine for you, keep using premiere. Blender is a wonderful 3D creation app, but the video editing tools have not advanced to the needs of today's users.